yah sometimes the sad mac codes can send you on a wild goose chase.  is best to just replace it all.

It was for both of them However it was aimed as a "if replacing all the ram fails" solution yes there are 2, iirc they are the two chips immediately to the right of the CPU (as…

I wouldn't attempt any upgrades to it besides possibly a SCSI card and maxing the ram out. It would however be nice if you could dump the BIOS and store it somewhere for safekeepi…

I second what uni said, be assured after decades these caps are going bad, even the best caps will dry out and not do the job.

Hi,  Many news : i can't boot on a USB drive (no option on the BIOS) and can't use a real graphic card : i have tested with many GPU and i have no screen. Just photos.

I think maxes suggestion was more for Macdrone not really for The thread op

Just tossing this out there, I'd say that I have re-Ram'd at least 14 128k's. and every single one of them had artifacts on the screen and A sad Mac. and every single one of them, …

max1zzz said: did you replace both 74s244's or just one? Click to expand... just one i replaced. which was near the cpu. i have to replace one more ? thanks for readin…

did you replace both 74s244's or just one?

Macdrone said: Since the 128 and 512 were same board when the 512 was introduced I would think so. Click to expand... I did replace the 74ls244 and then errorcode was ch…

I did replace the 74ls244 and then errorcode was chaged "020002". so i also replaced the F6 Ram. now it show the errcode "04FFFE".  

Yes those ICs are compatible from the 512 K , The ram is also compatible if you change it all and of course you will only see 128k of it.

Hey man that's trying to be rude or anything but before you waste a single second at whatever it is that you're doing there any troubleshooting and All, remove the capacitors wash…

Well if you test continuity with a meter and it's not there and should be just run a wire. I can't tell from the picture.

unity said: Yes, but to clarify does this sad mac occur without floppy in the drive? Click to expand... yep. there are not floppydisk in the drive. so maybe its not reas…

Update... I put in the RAM module from my other classic with the AB needing attntion and a pretty sad looking logic board, then went went to boot up again, only to get a garbled ch…

Galgot is right that's the display. Isn't the same as PowerBook 520? Passive matrix display ? Maybe interchangeable Yeah mine is all good except from the lcd and it turned really …

Well, looks like it was a simple fix. Pulled out the entire RAM expansion module as a unit, pulled the board for a quick visual (no leaking caps), and put it together just leaving …

gooddi said: and i can't boot with floppy because the sadmac ! thanks for reading. Click to expand... Yes, but to clarify does this sad mac occur without floppy in the d…

Mmmm I was going to do a precautionary recap soon on the machine anyway even though the machine worked perfectly and seemed in good shape. I will pull the RAM for a start and see i…

Might reseat the roms and memory. Caps of course if you have not already.

So, It would appear the first line indicates initial memory test fail, however I am not so sure how to decode the second line exactly... Also, I not on a 4th bootup attempt, where…

So I just went to boot up my Classic and got the following sad mac error... 00000002 0000FFF7 The first boot produced a bong, then the sad mac appeared, 2nd attempted boot I got…

Since the 128 and 512 were same board when the 512 was introduced I would think so.

Should be , I have a donor 512 but have not found them since moving.